<html>
    <head>
        <script type="text/javascript" src="namespace_manage.js"></script>
        <script>
            function test(){
                alert(my_namespace.add(3,4));
                alert(my_namespace.add);
                alert(my_namespace.private_func);
                alert(upper_ns.my_namespace.add(7,5));
            }
        </script>

    </head>

    <body>
        <h1>Test Namespace Manage</h1>
        <input type="button" value="show you how to manage namespace" onclick="test();"/>
    </body>
</html>
